Sure, cherry hinton water play, milton country park, sheep's green and lammas land park fen causeway, wandlebury country park are free, cambridge university botanic gardens is four pounds.
Please just pick a great park for me and provide the postcode.
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attraction-type train-arriveby train-day train-departure train-destination
attraction-type train-arriveby train-day train-departure train-destination
attraction-type train-arriveby train-day train-departure train-destination